I consider my work incident my 'first initial trauma' because I have experienced many traumatic events with no lingering symptoms or disturbances in my day to day life. My attempt to resuscitate my mother at her death caused some disturbance over a period of a year, but I did function through it.
My symptoms began almost immediately, within the hour of this last incident, one can call it acute stress but it felt 'stronger' than normal. By the third day with the adrenalin, shaking, anxiety and insomnia not yet beginning to fade, I just knew something had gone wrong with how this memory was processed, it was not following the 'usual' pattern.